PLEASE HELP WILL GIVE BRAINLIEST AND 20 POINTS add these fractions and select the simplified answer

m+n/6mn + m-n/2mn
or

Identify the number as a rational or irrational.explain. 127

The function h (t) = -16t squared + 28t + 500 represents the height of a rock t seconds after it's propelled by a slingshot what does h (3.2) represent?

Which statement best explains whether the table represents a linear or nonlinear function? input (x) output (y) 2 5 4 10 6 15 8 20 it is a linear function because the input values are increasing. it is a nonlinear function because the output values are increasing. it is a linear function because there is a constant rate of change in both the input and output. it is a nonlinear function because there is a constant rate of change in both the input and output.